needed support of formats cbt, cba and cb7

[Paulo Silva <nitrofurano gmail com>]

Hi!
it seems to .cbr and .cbz are very popular as comicbook formats
but in other side, some Linux purists are more comfortable with .tar
files, which .cbt would fit better

i can recall in a Tokamak2 development meeting, this guy
http://pinheiro-kde.blogspot.com/ struggled a lot when trying to help
a presentation of this one http://blog.karlitschek.de/ which had pages
in separated picture files, which a comicbook would help a lot, and
Pinheiro didn't have the zip and rar compressors installed that
time...

anyway, i were seeing from
http://en.wikipedia.org/wiki/Comic_Book_Archive_file the files .cbt,
.cba and .cb7 are also usual, even knowing they are rare, but at least
the .cbt support could be useful on Linux users...

thanks,
Paulo